- Improper or negligent treatment of a patient, as by a physician, resulting in injury, damage, or loss. (noun)
- Improper or unethical conduct by the holder of a professional or official position. (noun)
- The act or an instance of improper practice. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.